Added a small note about username@hostname ssh format
Use absolute paths for tailoring and input files when extracting RPM

This fixes RPM opening functionality.
Refactored undo command text generator into a separate private method
Refresh texts of undo commands after they are merged
Boast about RPM saving and opening in feature highlights in the manual
Merge branch 'v0-8' into v1-0
Merge branch 'v1-0'